Chair



(No Model.)

P. CHARBONNEAU.

CHAIR.

Patented Apr. 19, 1887.

N. PETERS. Phulwumugmphur. wnshnlun, IM:4

UNITED STATES PATENT OEEICEO PHILIAS CHARBONNEAU, OF BOSTON, MASSACHUSETTS.

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SPECIFICATION forming part of Letters Patent No. 361,615, dated April 1,9, 188'7.

Application filed April 4, 1885. Serial No. 161,173.

To all whom it may concern:

Be it known that LPHILIAsCHARBoNNEAU, a citizen of Canada, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Chair-Frames, of which the following is a specification. r

My invention relates to an improvement in the manufacture of the frames ot' chairs, such as are to be upholstered or covered 5 and the invention consists in constructing the frames of the backs and arms of such chairs of twisted wire and connecting the same to wooden seatframes, wherebyI gain great strength and a certain degree of elasticity in such frames for the back and arms.

Referring to the accompanying drawings, Figure l represents the frame, made of wood, of a chair embodying my invention. Fig. 2 shows one method of securing the standards, upper rails, and such like parts together.

A is a seat-frame supported upon legs B B. To the seat-frame are secured the upright standards C O,- composed of strands of wire twisted together for the back, and also short upright standards D D D D', also of twisted wire, for supporting the arms: These standards I prefer tov secure to the seat-frame in the manner shown-that is,by opening the strands of the wire and passing t-hem through holes bored in the seat-frame, two of such strands passing down so as to be flush with the bottom of the seat-frame, and two passing through and then bent inward and turned up a short distance inside the said seatframe. All the twisted wires are mad-e preferably of four strands.

Each of the upper ends of the short standards D D are bent over, as shown, and have secured to them twisted wires E E, that form the sides of the frame, the upper ends of which are also bent, as shown.

F is a piece of twisted wire that forms the top of the back of the chair, and is secured at each end to the side wires, E E,and in the center to the standards O C. G is a similar piece ot twisted wire, forming the back rail of the chairbaek, and is secured at its ends to the side wires, E E, and supported in the middle by strands from the standards C C.

H H are short pieces of twisted wire that form the arms of the chair, and are connected (No model.)

at one end to the scroll of standards D, and at the other end to the side wires, E E, and are also held by strands of wire extending from standards Dl D.

I I I are single pieces of wire secured 1n various positions so as to help retain the standards and side wires in position, and also for sustaining the upholstery.

In Fig. 2 is shown the method I prefer to employ for securing the standards G and rails F and G together. The strand marked 1 1s cut off at the desired height of the back, and the strand marked 2 is out off so much longer than l as the thickness of the rail F. The twist in the rail F is then opened, so as to allow strand 2 to pass through the bottom of the rail F and rest on the top of strand l. Strand 3 is then bentover the rail F,and twisted twice round the same, while the strand 4 is bent under the rail F, and meets the strand 3 at the back of rail F, where the two strands 3 and 4 are twisted together one or more times, and the twist in the rail G having been opened the end of strand 3 is inserted and laid over, so as to conform to the twist of the wire of rail G. The strand 4 is then twisted two or more times round the rail G. It will be seen that as the rail F rests upon the top of strand l, and strand 3 passing over the rail, it is held firmly vertically, while strand 2 passing up through the rail all lateral movement is prevented. Ihe twisted wires form virtually hollow tubes, which lighten the frame and give it great elasticity and strength. All the joints I prefer to make in this manner, and at the end joints-such as where the side wires E `ioin standards D-the strands 3 and 4C are simply twisted round standard D.

The frames for the backs and arms, as well as the seat, are to 'be upholstered or covered, and stuffed with any suitable material.

If au ordinary straight-backed chair is required, the side wires, E, may be straight and placed in a line with the standards C.

Instead of having the seat-frame A made of wood, it may be of metal, twisted wire, or any suitable material.

What I claim as my invention is- 1. The combination of the back and arm frame of twisted wire, constructed substantially as described, and the seat-frame A, the standards of said frame being untwisted or IOO separated into their several strands and the being bent inward and upward, substantially 1o latter passed individually through the seatas specified.

frame and clinched on the lower side thereof, In testimony whereof I havesgned my name substantially as set forth. to this speeication in the presence of two sub- 2. The combination of the standards C D scribing Witnesses.

with the seat-frame A, the same being secured PHILIAS CHARBONN-EAU.

together by two strands of each passing through Vitnesses:

the frame A, and being cut off flush with the J. H. ADAMS, I bottom, and two strands passing through and E. PLANTA. 

